fix: incorrect requested quantity for the subcontracting order

erpnext/controllers/subcontracting_controller.py

@@ -952,6 +952,23 @@ class SubcontractingController(StockController):
 
 		return self._sub_contracted_items
 
+	def update_requested_qty(self):
+		material_request_map = {}
+		for d in self.get("items"):
+			if d.material_request_item:
+				material_request_map.setdefault(d.material_request, []).append(d.material_request_item)
+
+		for mr, mr_item_rows in material_request_map.items():
+			if mr and mr_item_rows:
+				mr_obj = frappe.get_doc("Material Request", mr)
+
+				if mr_obj.status in ["Stopped", "Cancelled"]:
+					frappe.throw(
+						_("Material Request {0} is cancelled or stopped").format(mr), frappe.InvalidStatusError
+					)
+
+				mr_obj.update_requested_qty(mr_item_rows)
+
 
 def get_item_details(items):
 	item = frappe.qb.DocType("Item")